Nail, spike, or other driven holdfast.



No. 747,171. i PATBNTED DEG. l5, 1903.

C. HASS. NAIL, SPIKE, 0R OTHER DRIVEN HOLDFAST.

APPLIOATION *FILED MAB.. 4, i903.

R0 MODEL.

Q 4 yawanwa i rane Patented December 15, 1903.

CAESAR IIASS, OF LONDON, ENGLAND.

NAH., SPBKIE, OR OTHER DRM/EN HOLDFAST.

SPECIFICATION forming part of Letters Patent No. 747,171, dated December 15, 190:3.

Application filed March 4, 1903. Serial No. 146.244. (No model.)

To all whom, it may concern:

Be it known that I, OAESAR I-IASS, a citizen of the United States of America, residing at ll Dod street, Limehouse, London, England, have invented certain new and useful Iinprovenients in Nails, Spikes, or other Driven Holdfasts, of which the following is a specification.

The object of thisinvention is an improved construction of nail, spike, and other driven holdfast devices, and is specially applicable to that class of nail known as a wire7 or French nail.

In the manufacture of many wooden articles the nails have to be driven in close to i the edge of the wood, and. as they are at present'constructed splitting of the wood is a constant occurrence, because the angled sides of the point of the nail are such that they open out the grain of the wood by entering the wood wedge fashion instead of cutting their way through. y

My invention will be clearly understood by the following description, in which- Figure l is an elevation of a portion of a nailwhich has a round tapering point and four cutting edges and four grooves. Fig. 2 is a plan of the point end of such nail. Fig. 3 is an elevation of a portion of a nail which has a round tapering point and eight cutting edges and grooves. Fig. 4 is an elevation of a portion of a nail with a square tapering point and eight cutting edges and eight grooves. Fig. 5 is a plan of saine, and Fig. 6 is a view of a complete nail constructed as at Fig. 4.

By this invention this splitting of the wood is obviated by making the point portion l of the nail of a smaller size than the body 2 of the nail, such point portion being a square, as at Fig. 4, round, as at Figs. l and 3, triangle, or other section, and tapering from the body 2 of the nail to a point at the end, the nail at the base of the point portion being flat ended, as at 3, or of other shape, but of the full or greater Width than width of the nail, and the periphery of such nail for a portion of its length to the end 3 is formed with vcause it by its springiness to grip the nail iirmly. By this construction the point portion l of the nailis first driven in andi being of small diameter makes no effect on the wood to tend to split same, and so soon as the end 3 of the nail proper reaches the wood some or all of the ribs 5 cut their Way through bodily and the tapering walls of the grooves 4 compress the ber of the wood between the cut portion and so avoid all splitting and at the same time insuringa positive grip on the nail.

In use the point of the nail can be pressed into the wood by one hand of the carpenter and then left standing, so that he can drive the nail fully home with the other, thus leaving one hand free to stick the nails one after the other in place instead of holding the driven nail until it has gone in a certain distance.

, What I claim, and desire to secure by Letters Patent, is-

As a new article of manufacture, a nailhaving cutting edges extending radially fromthe body thereof and perpendicular thereto and separated from each other by tapering grooves nesses.

CAESAR HASS.

Witnesses:

PERCY E. MATrocKs, HUGH HUGHES. 

